140  
FNCA52 TJSJ 190843  
FWFSJU  
 
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO  
NATIONAL WEATHER SERVICE SAN JUAN PR  
443 AM AST WED SEP 19 2018  
   
DISCUSSION
 
A TROPICAL WAVE IS FORECAST TO MOVE SOUTH OF LOCAL  
FORECAST AREA TODAY. MOISTURE ASSOCIATED TO THIS TROPICAL WAVE  
WILL SLIGHTLY INCREASE THE CLOUD AND SHOWER COVERAGE ACROSS THE  
LOCAL FORECAST AREA. THEREFORE THE FIRE DANGER IS EXPECTED TO BE  
LOW TODAY.  
 
PRZ014-200845-  
SOUTHEAST COASTAL PLAINS-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 20 20 40  
TEMP (24H TREND) 94 (+3) 74 (0) 93  
RH % (24H TREND) 49 (-5) 94 (+2) 51  
20FTWND-VAL/AM(MPH) E 11 E 12  
20FTWND-RDG/PM(MPH) E 14 E 8 SE 14  
MIXING HGT(FT-AGL/MSL)6014 5647  
TRANSPORT WND (MPH) E 20 SE 20  
VENT RATE (KT-FT) 93075 106970  
DISPERSION 5 5  
DSI 6 5 6  
LAL 1 1 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ015-200845-  
SOUTHERN HILLS-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS TSTMS  
CHANCE PRECIP (%) 20 20 40  
TEMP (24H TREND) 92 (+5) 72 (-1) 89  
RH % (24H TREND) 51 (-8) 98 (+4) 55  
20FTWND-VAL/AM(MPH) E 11 E 13  
20FTWND-RDG/PM(MPH) SE 13 E 9 SE 14  
MIXING HGT(FT-AGL/MSL)5914 5587  
TRANSPORT WND (MPH) E 17 SE 18  
VENT RATE (KT-FT) 83190 103968  
DISPERSION 5 5  
DSI 6 4 6  
LAL 2 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ016-200845-  
NORTH COASTAL PLAINS-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS TSTMS TSTMS  
CHANCE PRECIP (%) 20 20 20  
TEMP (24H TREND) 92 (+3) 76 (-1) 93  
RH % (24H TREND) 54 (-8) 90 (0) 51  
20FTWND-VAL/AM(MPH) E 10 E 10  
20FTWND-RDG/PM(MPH) E 14 E 9 E 13  
MIXING HGT(FT-AGL/MSL)5587 6014  
TRANSPORT WND (MPH) E 17 SE 17  
VENT RATE (KT-FT) 75375 99450  
DISPERSION 5 5  
DSI 6 6 6  
LAL 2 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ017-200845-  
NORTHERN HILLS-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE TSTMS TSTMS TSTMS  
CHANCE PRECIP (%) 40 30 40  
TEMP (24H TREND) 91 (+4) 73 (0) 91  
RH % (24H TREND) 54 (-7) 97 (+2) 54  
20FTWND-VAL/AM(MPH) E 10 E 9  
20FTWND-RDG/PM(MPH) E 11 E 7 SE 11  
MIXING HGT(FT-AGL/MSL)5520 5933  
TRANSPORT WND (MPH) E 15 SE 16  
VENT RATE (KT-FT) 71736 95634  
DISPERSION 5 5  
DSI 6 5 6  
LAL 2 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ018-200845-  
WEST COAST-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY PCLDY PCLDY  
PRECIP TYPE TSTMS TSTMS TSTMS  
CHANCE PRECIP (%) 30 40 40  
TEMP (24H TREND) 93 (+2) 75 (-1) 89  
RH % (24H TREND) 52 (-3) 91 (+2) 58  
20FTWND-VAL/AM(MPH) E 9 E 11  
20FTWND-RDG/PM(MPH) E 10 E 6 SE 13  
MIXING HGT(FT-AGL/MSL)5761 5435  
TRANSPORT WND (MPH) E 14 SE 18  
VENT RATE (KT-FT) 83460 108840  
DISPERSION 5 5  
DSI 6 5 6  
LAL 2 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ019-200845-  
EASTERN INTERIOR-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 20 40  
TEMP (24H TREND) 92 (+5) 73 (-2) 91  
RH % (24H TREND) 55 (-8) 97 (+3) 55  
20FTWND-VAL/AM(MPH) E 10 SE 11  
20FTWND-RDG/PM(MPH) E 12 E 7 SE 12  
MIXING HGT(FT-AGL/MSL)5517 5547  
TRANSPORT WND (MPH) E 18 SE 18  
VENT RATE (KT-FT) 71610 93789  
DISPERSION 5 5  
DSI 6 5 6  
LAL 2 1 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ022-200845-  
LUQUILLO MOUNTAIN RANGE-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 20 40  
TEMP (24H TREND) 88 (+5) 70 (-4) 86  
RH % (24H TREND) 66 (-9) 100 (+6) 67  
20FTWND-VAL/AM(MPH) E 12 SE 13  
20FTWND-RDG/PM(MPH) E 13 E 10 SE 13  
MIXING HGT(FT-AGL/MSL)3908 3709  
TRANSPORT WND (MPH) E 18 SE 17  
VENT RATE (KT-FT) 46186 65059  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ023-200845-  
CENTRAL MOUNTAIN RANGE-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE TSTMS TSTMS TSTMS  
CHANCE PRECIP (%) 30 20 40  
TEMP (24H TREND) 90 (+5) 68 (-3) 88  
RH % (24H TREND) 55 (-8) 100 (+3) 56  
20FTWND-VAL/AM(MPH) E 10 SE 13  
20FTWND-RDG/PM(MPH) SE 11 E 7 SE 13  
MIXING HGT(FT-AGL/MSL)5545 5663  
TRANSPORT WND (MPH) E 14 SE 17  
VENT RATE (KT-FT) 60619 92192  
DISPERSION 5 5  
DSI 6 4 6  
LAL 2 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ024-200845-  
CAYEY MOUNTAIN RANGE-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 20 40  
TEMP (24H TREND) 88 (+3) 72 (-1) 87  
RH % (24H TREND) 61 (-5) 98 (+3) 61  
20FTWND-VAL/AM(MPH) E 11 E 12  
20FTWND-RDG/PM(MPH) E 12 E 9 SE 12  
MIXING HGT(FT-AGL/MSL)4703 4435  
TRANSPORT WND (MPH) E 18 SE 17  
VENT RATE (KT-FT) 62070 80028  
DISPERSION 5 5  
DSI 6 5 6  
LAL 1 1 1  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ025-200845-  
VIEQUES-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER PCLDY MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 40 20 40  
TEMP (24H TREND) 89 (-1) 81 (0) 87  
RH % (24H TREND) 66 (+2) 84 (+1) 68  
20FTWND-VAL/AM(MPH) E 12 E 13  
20FTWND-RDG/PM(MPH) E 12 E 12 E 13  
MIXING HGT(FT-AGL/MSL)3346 3349  
TRANSPORT WND (MPH) E 21 SE 22  
VENT RATE (KT-FT) 50432 61085  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ026-200845-  
CULEBRA-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 20 20 40  
TEMP (24H TREND) 90 (0) 81 (0) 87  
RH % (24H TREND) 64 (-3) 86 (+3) 70  
20FTWND-VAL/AM(MPH) E 14 E 16  
20FTWND-RDG/PM(MPH) E 13 E 14 E 15  
MIXING HGT(FT-AGL/MSL)3181 3291  
TRANSPORT WND (MPH) E 21 E 23  
VENT RATE (KT-FT) 46275 65772  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
PRZ027-200845-  
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE SHOWERS TSTMS TSTMS  
CHANCE PRECIP (%) 10 20 40  
TEMP (24H TREND) 94 (+2) 76 (0) 91  
RH % (24H TREND) 48 (-5) 90 (0) 52  
20FTWND-VAL/AM(MPH) E 12 E 14  
20FTWND-RDG/PM(MPH) SE 15 E 10 SE 15  
MIXING HGT(FT-AGL/MSL)6082 5685  
TRANSPORT WND (MPH) E 18 SE 23  
VENT RATE (KT-FT) 91472 115101  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 2 2  
HAINES INDEX 3 3 3  
 
REMARKS...NONE.  
 

 
 
VIZ001-200845-  
SAINT THOMAS AND SAINT JOHN-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR MCLEAR PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 20 20 40  
TEMP (24H TREND) 90 (0) 79 (0) 89  
RH % (24H TREND) 63 (-1) 89 (0) 64  
20FTWND-VAL/AM(MPH) E 13 SE 15  
20FTWND-RDG/PM(MPH) E 12 E 13 SE 14  
MIXING HGT(FT-AGL/MSL)3229 3287  
TRANSPORT WND (MPH) E 21 SE 22  
VENT RATE (KT-FT) 53190 59620  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 3 4  
 
REMARKS...NONE.  
 

 
 
VIZ002-200845-  
ST CROIX-  
443 AM AST WED SEP 19 2018  
 
TODAY TONIGHT THU  
 
CLOUD COVER MCLEAR PCLDY PCLDY  
PRECIP TYPE SHOWERS SHOWERS SHOWERS  
CHANCE PRECIP (%) 20 40 40  
TEMP (24H TREND) 89 (+1) 78 (+1) 89  
RH % (24H TREND) 65 (-3) 92 (-2) 63  
20FTWND-VAL/AM(MPH) E 12 E 14  
20FTWND-RDG/PM(MPH) E 13 E 11 E 13  
MIXING HGT(FT-AGL/MSL)3290 3322  
TRANSPORT WND (MPH) E 23 E 24  
VENT RATE (KT-FT) 59090 69432  
DISPERSION 5 5  
DSI 6 6 6  
LAL 1 1 1  
HAINES INDEX 3 3 4  
 
REMARKS...NONE.  
 

 
 

 
 
CLICK HERE TO GO TO PREVIOUS BULLETINS.

The Nexlab PR Page Main Text Page